• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International Conference on Microalloying for New Steel Processes and Applications; 20050907-09; Basque Country(ES) >Aspects of Production Hot Rolling of Nb Microalloyed High Al High Strength Steels
【24h】

Aspects of Production Hot Rolling of Nb Microalloyed High Al High Strength Steels

机译：铌微合金高铝高强度钢的生产热轧方面

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

High Al low C - Mn steels are attracting growing interest because of their unique mechanical properties. The major efforts in studying these steels are focused on the effects of heat treatment routes on the final properties. Hot rolling, although being decisively important receive much less attention. The practical aspects of hot strip rolling of Nb microalloyed high Al steels are addressed in the paper. The data from production hot mill are analyzed in conjunction with the results of laboratory high temperature mechanical simulations. Mill data indicate that Al suppresses the effects of microalloying on softening of austenite. Al additions raise the austenite-to-ferrite transformation temperature under industrial mill conditions resulting in uncontrollable formation of ferrite in the surface layers during last hot rolling passes. This, in turn, leads to uncontrollable variation in tension, friction, rolling forces and mass flow. In general, high Al steels are much more sensitive to the variations in bar temperature than that of conventional HSLA steels, so that small variations in processing conditions can induce marked differences in the mill performance and the quality of the hot band. The severity of the related adverse effects also depends on hot mill configuration, capabilities and equipment.
机译：高铝低碳锰钢由于其独特的机械性能而引起了越来越多的关注。研究这些钢的主要努力集中在热处理路线对最终性能的影响上。热轧尽管起着决定性的作用，但受到的关注却少得多。本文讨论了铌微合金化高铝钢热轧带钢的实际问题。将生产热轧机的数据与实验室高温机械模拟的结果一起进行分析。轧制数据表明，Al抑制了微合金化对奥氏体软化的影响。铝的添加会在工业轧机条件下提高奥氏体到铁素体的转变温度，导致在最后一次热轧道次期间在表面层中形成不可控制的铁素体。反过来，这导致张力，摩擦，滚动力和质量流量的不可控制的变化。通常，高铝钢比常规HSLA钢对棒温度的变化更为敏感，因此加工条件的细微变化会导致轧机性能和热轧带质量明显不同。相关不利影响的严重程度还取决于热轧机的配置，功能和设备。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号